Old ships and machinery fill a historic harbor in the city that's home to Europe's largest port.

This enormous storm barrier is one of the largest moving structures on Earth, with each arm taller than the Washington Monument.

A Netherlands hotel where you can sleep inside a wine barrel.

This towering church is home to a world-famous organ and a treasure trove of medieval art.

Yup, that's a 330-foot yacht passing over the highway.

This historical Netherlands fortress still bears the marks of its single siege.

A set of 27 bamboo tubes creates an eerie soundscape that changes with the wind.

This fairy tale forest hides scenes from some of the more obscure and bizarre Western nursery stories.

A miniature city, once ruled by the Queen of the Netherlands.

It appears as if a man is standing behind this giant airport clock, painting the hands in real time.

Rich with fauna and flora, nature-lovers can walk across the sea at this UNESCO World Heritage spot.

Birthplace of the "Cat in the Cradle" and a cluster of iconic, original windmills that let the Dutch tame the seas.

Unsurprisingly, Holland is home to one of the most magnificent flower gardens in the world.

These slanted cubic abodes are a creative if odd solution to a zoning pickle.

Colorful and chaotic stacked hotel in North Holland.

This museum housed in a former brothel explores the past and present of sex work in Amsterdam.

The ruins of this Dutch castle sit atop a labyrinth of once-secret tunnels and passageways, dating back over 900 years.

A little sculpture with a large wardrobe.

Climb inside an iron crystal magnified 165 billion times its normal size.

Each spring, a dreamlike carpet of bluebells overtakes the forest floor.

A hugely vast Irish landscape of barren rock that stretches for miles.

Legend says this rock spire is the finger of a witch who wanted to throw the Faroe Islands towards Iceland.

The narrow passages will challenge even the bravest driver.

This tombstone marks the spot where the legendary British spy met his end.